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EventEmitter properties test
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <meta charset="UTF-8"> | |
| <!-- https://developer.mozilla.org/en-US/docs/Web/HTTP/CSP --> | |
| <meta http-equiv="Content-Security-Policy" content="default-src 'self'; script-src 'self'"> | |
| <meta http-equiv="X-Content-Security-Policy" content="default-src 'self'; script-src 'self'"> | |
| <title>EventEmitter properties test</title> | |
| </head> | |
| <body> | |
| </body> | |
| </html> |
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| // Modules to control application life and create native browser window | |
| const { app, BrowserWindow, ipcMain } = require('electron') | |
| const path = require('path') | |
| function createWindow () { | |
| const mainWindow = new BrowserWindow({ | |
| width: 800, | |
| height: 600, | |
| webPreferences: { | |
| preload: path.join(__dirname, 'preload.js') | |
| } | |
| }) | |
| mainWindow.loadFile('index.html') | |
| } | |
| app.whenReady().then(() => { | |
| ipcMain.on('dump-properties', (event) => { | |
| const { EventEmitter } = require('events') | |
| const emitter = new EventEmitter() | |
| let properties = "" | |
| currentObj = emitter | |
| do { | |
| Object.getOwnPropertyNames(currentObj).map(item => properties += item + ';') | |
| } while ((currentObj = Object.getPrototypeOf(currentObj))) | |
| event.sender.send('properties-dump-browser', properties) | |
| }) | |
| createWindow() | |
| app.on('activate', function () { | |
| if (BrowserWindow.getAllWindows().length === 0) createWindow() | |
| }) | |
| }) | |
| app.on('window-all-closed', function () { | |
| if (process.platform !== 'darwin') app.quit() | |
| }) | |
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| { | |
| "name": "dispensable-vest-convince-6ejhb", | |
| "productName": "dispensable-vest-convince-6ejhb", | |
| "description": "My Electron application description", | |
| "keywords": [], | |
| "main": "./main.js", | |
| "version": "1.0.0", | |
| "author": "Markus", | |
| "scripts": { | |
| "start": "electron ." | |
| }, | |
| "dependencies": {}, | |
| "devDependencies": { | |
| "electron-nightly": "22.0.0-nightly.20220830" | |
| } | |
| } |
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| window.addEventListener('DOMContentLoaded', () => { | |
| const { EventEmitter } = require('events') | |
| const emitter = new EventEmitter() | |
| let properties = "" | |
| currentObj = emitter | |
| do { | |
| Object.getOwnPropertyNames(currentObj).map(item => properties += item + ';') | |
| } while ((currentObj = Object.getPrototypeOf(currentObj))) | |
| console.log(properties) | |
| const { ipcRenderer } = require('electron') | |
| ipcRenderer.send('dump-properties') | |
| ipcRenderer.on('properties-dump-browser', (event, dump) => { | |
| console.log(dump) | |
| console.log(dump === properties) | |
| window.document.body.style.background = dump === properties ? 'green' : 'red'; | |
| }) | |
| }) |
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